To much reading for me this morning---LOL. Sure the eggs need to be properly gathered, stored, good hens, roosters, etc, etc to have great hatches as far as positioned---a certain way under the hen or incubator---that's not important. I have incubated about 11,000 eggs in just 3 seasons and with...
I am not sure what you mean by particular orientation? Yea the temp and humidity needs to be in range for a great hatch.
I agree, the ideal hatch should be in the 12 hour or so range from start to finish. I do not bother my hens at all while they are hatching but I do know that all the chicks...